Trench construction device for construction sites

ABSTRACT

This invention discloses a trench construction device for construction sites, belonging to the technical field of construction equipment, which solves the existing problems with low construction quality and efficiency in digging the tranches, and the trench construction device for construction sites comprises a movable base 1 and guide rails 10, an installation base 2 on the movable base 1, a planer knife 28 fixed on the installation base 2, a discharging pipe 3 fixed on the planer knife 28, a feed inlet 31 disposed on the discharging pipe 3, a discharging device disposed in the discharging pipe 3, a material tank 4 fixed on the movable base 1, wherein a discharging port 41 is disposed on a bottom of the material tank 4, a scraper 51 is fixed on the movable base 1, and a pushing belt 8 rotatably arranged between the discharging port 41 and the scraper 51; the trench construction device for construction sites is convenient and labor-saving with a higher construction quality.

CROSS-REFERENCES TO RELATED APPLICATIONS

The present application claims priority from Chinese application No. 2020101179052 filed on Feb. 26, 2020 which is hereby incorporated by reference in its entirety.

TECHNICAL FIELD

The present invention relates to the technical field of construction equipment, in particular to a trench construction device for construction sites.

BACKGROUND OF THE INVENTION

In the construction site, a large amount of work in digging the trenches are required for water diversion and discharging, a cross section of the trench is mostly on isosceles trapezoid with an upward opening, and the concrete is required to casting on bottom surface and side surfaces of the trench to avoid a soil crushing, otherwise it is difficult to meet the requirement of water discharging and is easy to reduce an underground soil erosion on construction site; however, with a construction of architecture on construction site, the trench is needed to re-dig with the changes. However, the present trench construction is processed manually, which is difficult to to ensure a flatness of the bottom surface and the side surfaces of the trench and waste time and manpower with a low efficiency.

BRIEF SUMMARY OF THE INVENTION

The technical problem to be solved by the invention is to provide a trench construction device for construction sites that will make a construction of trench on construction sites more convenient and labor-saving with a higher quality, so as to overcome the problems existing in the prior art.

The following technical plan is adopted by the invention to solve the above-mentioned technical problems: a trench construction device for construction sites, comprises a movable base and two of guide rails fixed on ground of two sides of a trench, wherein the movable base is an U-shaped plate and two edges of the movable base are respectively and slidably connected on the guide rails, and the movable base has an upward flaring shaped opening, wherein an installation base on U-shaped plate is fixed on a front end of the movable base, wherein a planer knife with a cutting edge facing forwardly is fixed on a front edge of the installation base along a direction of extending across a width of the moveable base, wherein a discharging pipe is fixedly arranged on a rear side of the planer knife along the a direction of extending across a width of the moveable base, and two ends of the discharging pipe are extending into outer sides of the guide rails, wherein a feed inlet located behind the planer knife is defined on front sides of the discharging pipe along the direction of extending across a width of the moveable base, wherein a discharging device which can discharge soil slag to two sides of the discharging pipe is arranged in the discharging pipe, wherein a striking mechanism which can strike on an underside and two sides of the trench is further arranged on the installation base, and a material tank for storing concrete is fixedly arranged on the movable base, wherein an discharging port arranged along a direction that the rear edge of the movable base extends across a width of the moveable base is defined on a bottom of the material tank, and a scraper with a rear-faced cutting edge is fixed on a rear edge of the movable base along the length direction, wherein a pushing belt for bulldozing the concrete discharged from the discharging port is rotatably arranged between the discharging port and the scraper on the movable base.

Whereby the trench excavation on the construction sites is shaped and a cross section of the trench is on a flaring shape of isosceles trapezoid, whereby when a casting is required, the guide rails are horizontally fixed on the ground of two sides of the trench, and the movable base is placed within the trench, so that an outer underside of the movable base sticks on an underside of the trench and two outer side surfaces of the movable base stick on two inner side surfaces of the trench, and the movable base slides along the guide rails, and at this time, the planer knife is able to dig the uneven and projecting soil down from the bottom surface and side surfaces of the trench, and with a forwarding movement of the movable base, the dug soil is able to enter into the discharging pipe through the feed inlet, and then the discharging device is able to discharge the soil in the discharging pipe from the two ends to the ground, and after the bottom surface and the side surfaces of the trench are dug into a plane surface, the striking mechanism is able to strike the plane surface to make the bottom surface and the side surfaces tight, and finally the discharging port on the material tank is able to release the concrete gradually, and then the pushing belt is able to bulldoze the released concrete by the pushing belt, and then the scraper will scrap the concrete more smooth, which can ensure a construction quality, and the whole process does not need to be carried out manually, so the construction is more convenient and labor-saving.

In above-stated trench construction device for construction sites, wherein driving bases are slidably connected on the guide rails, wherein several of connection columns are vertically fixed on the driving bases, and several of attachment sleeves are fixed on the edges of two sides of the movable base, wherein several of the attachment sleeves are slidably sleeved o several of the guide columns respectively, and length of the guide columns are larger than that of the attachment sleeves, and the concrete is stored in the material tank and the concrete has a relative larger weight, and a guide sleeve on the movable base is only sleeved on the guiding column, so that the movable base is able to support on the bottom surface and the side surface of the trench to make the movable base to press the bottom surface and the side surface of the trench more tightly with a weight of the concrete, so that enduring a stability of the movable base.

In above-stated trench construction device for construction sites, wherein the installation base comprises an installation bottom panel horizontally arranged and the installation side panels located at two sides and arranged inclined, and the planer knife is on long strip, wherein a middle part of the planer knife is paralleled to the installation bottom panels, and two ends of the planer knife are respectively paralleled with two of the installation side panels, wherein the cutting edge of the planer knife is arranged inclined downward, and a middle cutting edge of the planer knife is lower than the installation bottom panels, and the cutting edges of two ends of the planer knife are respectively lower than two of the installation side panels, and the discharging pipe comprises inclined segments located on two ends and the horizontal segment located on middle part, wherein the horizontal segment is paralleled to the middle part of the planer knife and the inclined segments is paralleled to two ends of the planer knife, and a rear edge of the planer knife contacts with a lower edge of the feed inlet to make the planer knife and the discharging pipe be able to adapted to a shape of the trench; whereby with a movement of the movable base, the dug soil is able to enter the feed inlet along a side surface of the planer knife.

In above-stated trench construction device for construction sites, wherein the discharging mechanism comprises a discharging motor, and a discharging main shaft is rotatably connected within the horizontal segment, wherein two of main helical blades are spirally arranged on a peripheral surface of the discharging main shaft along the length direction, wherein two of the main helical blades extend into two ends of the discharging main shaft respectively and spiral directions of two of the main helical blades are contrary to each other, and discharging side shafts are rotatably connected within the inclined segments, wherein a side helical blades is spirally arranged on peripheral surfaces of the corresponding one of the discharging side shafts along the length direction, and a spiral direction of the side helical blades is the same as a spiral direction of the main helical blades of an adjacent one, and the discharging motor, the discharging main shaft and the discharging side shafts are connected with each other, whereby the discharging motor drives the discharging main shaft to rotate, and then two of main discharging blades on the discharging main shaft are able to push the soil in the discharging pipe to two ends, and then the soil will be pushed and transferred by side discharging blades of the discharging side shafts after the soil enters into the inclined segments.

In above-stated trench construction device for construction sites, wherein a transmission main shaft is rotatably connected on the installation bottom panels along a width direction, and a transmission side shafts is rotatably connected on the installation side panels along the width direction, and a driving bevel gears is fixed on two ends of the transmission main shaft, and driven bevel gears are fixed on inner ends of the transmission side shafts, wherein two of the driven bevel gears are engaged with two of the driving bevel gears respectively, and the transmission main shaft is drive-connected to a middle of the discharging main shaft through a pulley, and discharging segments horizontally arranged is formed by an outward bending of two of the inclined segments, wherein an outer end of each of the discharging side shafts passes through side walls of the discharging segments and a stretch end of each of the discharging side shafts is drive-connected to an outer end of the transmission side shafts through the pulley, and the driving motors is fixed on the installation bottom panels, wherein the driving gears is drive-connected to the transmission main shaft through the pulley, that is, the discharging motor drives the transmission main shaft to rotate, and then the transmission main shaft directly drive the discharging main shaft to rotate, at the same time, two ends of the transmission main shaft drive the transmission side shafts to rotate through a cooperation of the driving bevel gears and the driven bevel gears, and then the transmission side shafts drives a corresponding one of the discharging side shafts to rotate.

In above-stated trench construction device for construction sites, wherein the striking mechanism comprises several of transmission plates respectively located on a lower side of the installation bottom panels and an outer side of the installation side panels, wherein several of the transmission plates are lined up forward and backward, and the transmission plates on the lower side of the installation bottom panels are arranged along a width direction of the installation bottom panels and the transmission plates on the outer sides of the installation side panels are arranged along a width direction of the installation side panels, wherein several through holes are defined in two sides of the installation bottom panels and the installation side panels along a length direction, and connection plates are vertically arranged on two ends of the transmission plates and the connection plates are slidably pass through the corresponding through holes, wherein the guide sleeves are fixed on ends of the connection plates, and several of guide columns are vertically fixed on two edges of the installation bottom panels and the installation side panels, wherein several of the guide sleeves are slidably sleeved on several of the guide columns, and several of striking columns are arranged on outer side surfaces of the transmission plates along the length direction, wherein the striking discs are arranged on end surfaces of the striking columns, wherein outer edges of the striking discs are disposed with arc-shaped chamfer, and a transmission member for driving several of the guide sleeves to move along the guide columns to and fro is arranged on the installation base; whereby the transmission member drives the guiding sleeves to slide reciprocally along the guiding columns, so that the striking discs on the striking column can reciprocally strike the bottom surface and the side surfaces of the trench.

In above-stated trench construction device for construction sites, wherein wherein the transmission member comprises several of transmission columns rotatably connected on edges of two sides of the installation side panels and the installation bottom panels, and the transmission columns on the installation bottom panels are arranged along a width direction of the installation bottom panels, and the transmission columns on the installation side panels are arranged along a width direction of the installation side panels, and the transmission cams are fixed on ends of the transmission columns, and the striking springs are sleeved on the guide columns, wherein upper ends of the striking springs act on top ends of the guide columns and lower ends of the striking springs act on upper ends of the guide sleeves, and the pushing plates are fixed on the guide sleeves, wherein a cam surface of the transmission cam transmission cams are abutted against lower side surfaces of the pushing plates, and projection directions of several of the transmission cams on same row along the forward and backward directions are different from each other, and adjacent two of the transmission columns on same row along the forward and backward directions are drive-connected with each other through the pulley, and one of the transmission columns on same row along the forward and backward direction on the installation bottom panels are drive-connected with the transmission main shaft through the pulley, and one of the transmission columns on same row along forward and backward directions on the installation side panels are drive-connected with the transmission side shafts through the pulley; whereby when the projection of the transmission cam is projected to the pushing plates, the guiding sleeves press the striking springs, and then the striking discs are lifted up, and when the pushing plates push the projection of the transmission cams, the striking discs will be pushed out to strike the bottom surface and the side surfaces of the trench under the action of the striking springs, wherein the projection directions of the transmission cams on same one row are different from each other, so that to avoid a jump motion of the whole installation base when a resonance appear as the striking disc strikes the bottom surface and the side surfaces of the trench.

In above-stated trench construction device for construction sites, wherein an installation plate is fixed on rear side surface of the material tank, wherein the installation plate is on isosceles trapezoid, and transmission wheels are rotatably connected on four corners of the rear side surface of the installation plate, wherein the pushing belt on circle-shaped is sleeved on four of the transmission wheels, regulating boards on long strips are slidably and vertically connected on side surfaces of the installation plate, wherein the regulating boards are locked and fixed on the installation plate through a locking bolt, wherein tension pulleys are rotatably connected on two of the regulating boards, and a transmission gear is rotatably connected on the installation plate, wherein the transmission gear is located between two of the tension pulleys, and notches are arranged on inner side surface of the pushing belt, wherein two of the tension pulleys press downward on outer side surface of the pushing belt, and notches of the pushing belt are engaged with the transmission gear under an action of the tension pulleys, and a transmission motor is fixed on the installation plate, wherein the transmission motor is drive-connected with the transmission gear through the pulley, and several projected one of pushing peaks are distributed on outer side surface of the pushing belt along the length direction, wherein a length direction of the pushing peaks are arranged along a width direction of the pushing belt, and the cross section of the pushing peaks are on arc-shaped, and guide ramp are arranged on edges, closing to the installation plate, of the outer side surface of the pushing belt, wherein the discharging port is opposite to the guide ramp, and a counterweight is arranged in the material tank; whereby pushing belt is sleeved on four of the transmission wheels and is strained by two of the tension pulleys, so that the notches are engaged with the transmission gear to ensure a stability of the transmission.

In above-stated trench construction device for construction sites, wherein the counterweight is on rectangle and an end surface of an edge of the counterweight stick to inner side surface of the material tank, wherein feed port is defined on a middle part of the counterweight, wherein a cover is sealed and fixed on the feed port, and two of discharging port on long strip are vertically fixed on two side surfaces of the material tank, wherein damping grooves are formed between the damping plates and outer side surface of the material tank, wherein rubber layers are fixed on inner side surfaces of the damping plates, and damping masses are connected on edges of two sides of the counterweight through the pull cords, and a guide wheel is rotatably connected on the edge of the upper end of the material tank, and the pull cords pass around the guide wheel, and two of the damping masses connected within the damping grooves on two sides of the material tank respectively, and two ends of the damping plates are penetrated through and disposed with an adjusting bolt, wherein ends of the adjusting bolt are threaded on side surface of the material tank; whereby the guide ramp is able to guide the concrete released by the discharging port to a lower side of the pushing belt during the movement of the movable base, and then the pushing peaks will bulldoze the concrete.

In above-stated trench construction device for construction sites, wherein the movable base comprises movale bottom panel and movable side panel located on two sides and inclined arranged, and the installation bottom panels is higher than the movale bottom panel, and the installation side panels is higher than the movable side panel, and the cutting edge of the scraper is arranged inclined and downward, wherein a middle part of the scraper is paralleled to edge of rear end of the movale bottom panel, wherein two ends of the scraper are paralleled to edges of rear ends of two of the movable side panel respectively, and guide grooves are arranged on outer side surfaces of the guide rails, wherein driving racks are fixed on groove walls of the guide grooves along a length direction, and cross sections of driving bases are on U-shaped and the driving bases are buckled on the guide rails, wherein two of rollers and one of rollers are rotatably connected on inner side surfaces of the driving bases, wherein the driving gears are located between two of the rollers, and two of the rollers are abutted against lower groove walls of the guide grooves, and the driving gears are engaged with the driving racks, and driving motors are further fixed on the driving bases, wherein the driving motors are connected with the driving gears; whereby the bulldozed concrete will be bulldozed by the scraper to ensure a construction quality, and then the driving motors drive the driving gears to rotate to drive the driving bases to move.

Accordingly from the above, the present invention has the following advantages:

1. As the planer knife is able to dig the uneven and projecting soil down from the bottom surface and side surfaces of the trench, the dug soil is able to enter into the discharging pipe through the feed inlet, and then the discharging device is able to discharge the soil in the discharging pipe from the two ends to the ground, and after the bottom surface and the side surfaces of the trench are dug into a plane surface, the striking mechanism is able to strike the plane surface to make the bottom surface and the side surfaces tight, and finally the discharging port on the material tank is able to release the concrete gradually, and then the pushing belt is able to bulldoze the released concrete by the pushing belt, and then the scraper will scrap the concrete more smooth, which can ensure a construction quality, and the whole process does not need to be carried out manually, so the construction is more convenient and labor-saving.

2. As concrete is stored in the material tank and the concrete has a relative larger weight, and a guide sleeve on the movable base is only sleeved on the guiding column, so that the movable base is able to support on the bottom surface and the side surface of the trench to make the movable base to press the bottom surface and the side surface of the trench more tightly with a weight of the concrete, so that enduring a stability of the movable base.

3. As the projection directions of the transmission cams on same one row are different from each other, so that to avoid a jump motion of the whole installation base when a resonance appear as the striking disc strikes the bottom surface and the side surfaces of the trench.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a stereoscopic view showing the structure of a trench construction device for construction sites in FIG. 1;

FIG. 2 is a stereoscopic view showing the structure of the trench construction device for construction sites from another view in FIG. 1;

FIG. 3 is a longitudinal sectional view of the trench construction device for construction sites;

FIG. 4 is a lateral sectional view showing the structure of the trench construction device for construction sites on discharging pipe;

FIG. 5 is the enlarged structural diagram of A in FIG. 2;

FIG. 6 is the enlarged structural diagram of B in FIG. 3;

FIG. 7 is the front view of the trench construction device for construction sites on discharging pipe;

FIG. 8 is the enlarged structural diagram of C in FIG. 3;

FIG. 9 is the enlarged structural diagram of D in FIG. 1;

FIG. 10 is the enlarged structural diagram of E in FIG. 7;

In figure, a movable base 1, a movable bottom panel 11, a movable side panel 12, attachment sleeves 121, an installation base 2, an installation bottom panel 21, installation side panels 22, a transmission main shaft 23, a driving bevel gears 231, transmission side shafts 24, driven bevel gears 241, a discharging motor 25, guide columns 26, striking springs 261, transmission columns 27, transmission cams 271, a planer knife 28, a discharging pipe 3, a feed inlet 31, a horizontal segment 32, inclined segments 33, discharging segments 34, a discharging main shaft 35, main helical blades 351, discharging side shafts 36, side helical blades 361, a material tank 4, a discharging port 41, damping plates 42, rubber layers 43, damping grooves 44, a guide wheel 45, an installation plate 5, a scraper 51, transmission wheels 52, regulating boards 53, tension pulleys 531, a transmission gear 54, a transmission motor 55, a driving bases 6, connection columns 61, rollers 62, driving gears 63, driving motors 64, transmission plates 7, connection plates 71, guide sleeves 72, pushing plates 73, striking columns 74, striking discs 75, a pushing belt 8, notches 81, pushing peaks 82, a guide ramp 83, a counterweight 9, a feed port 91, a cover 91, pull cords 93, damping masses 94, guide rails 10, guide grooves 101 and driving racks 102.

DETAILED DESCRIPTION OF THE INVENTION

The technical scheme of the invention is further described by the embodiments of the invention not limiting the scope and spirit of the invention in combination with accompanying figures.

Referring to FIGS. 1, 2 and 3, a trench construction device for construction sites, comprises a movable base 1 and two of guide rails 10 fixed on ground of two sides of a trench, wherein the movable base 1 is an U-shaped plate and two edges of the movable base 1 are respectively and slidably connected on the guide rails 10, and the movable base 1 has an upward flaring shaped opening, wherein an installation base 2 on U-shaped plate is fixed on a front end of the movable base 1, wherein a planer knife 28 with a cutting edge facing forwardly is fixed on a front edge of the installation base 2 along a direction of extending across a width of the moveable base 1, wherein a discharging pipe 3 is fixedly arranged on a rear side of the planer knife 28 along the direction of extending across a width of the moveable base 1, and two ends of the discharging pipe 3 are extending into outer sides of the guide rails 10, wherein a feed inlet 31 located behind the planer knife 28 is defined on front sides of the discharging pipe 3 along the direction of extending across a width of the moveable base 1, wherein a discharging device which can discharge soil slag to two sides of the discharging pipe is arranged in the discharging pipe 3, wherein a striking mechanism which can strike on an underside and two sides of the trench is further arranged on the installation base 2, and a material tank 4 for storing concrete is fixedly arranged on the movable base 1, wherein an discharging port 41 arranged along a direction that the rear edge of the movable base 1 extends across a width of the moveable base 1 is defined on a bottom of the material tank 4, and a scraper 51 with a rear-faced cutting edge is fixed on a rear edge of the movable base 1 along the length direction, wherein a pushing belt 8 for bulldozing the concrete discharged from the discharging port 41 is rotatably arranged between the discharging port 41 and the scraper 51 on the movable base 1; whereby the trench excavation on the construction sites is shaped and a cross section of the trench is on a flaring shape of isosceles trapezoid, whereby when a casting is required, the guide rails 10 are horizontally fixed on the ground of two sides of the trench, and the movable base 1 is placed within the trench, so that an outer underside of the movable base 1 sticks on an underside of the trench and two outer side surfaces of the movable base 1 stick on two inner side surfaces of the trench, and the movable base 1 slides along the guide rails 10, and at this time, the planer knife 28 is able to dig the uneven and projecting soil down from the bottom surface and side surfaces of the trench, and with a forwarding movement of the movable base 1, the dug soil is able to enter into the discharging pipe 3 through the feed inlet 31, and then the discharging device is able to discharge the soil in the discharging pipe 3 from the two ends to the ground, and after the bottom surface and the side surfaces of the trench are dug into a plane surface, the striking mechanism is able to strike the plane surface to make the bottom surface and the side surfaces tight, and finally the discharging port 41 on the material tank 4 is able to release the concrete gradually, and then the pushing belt 8 is able to bulldoze the released concrete by the pushing belt 8, and then the scraper 51 will scrap the concrete more smooth, which can ensure a construction quality, and the whole process does not need to be carried out manually, so the construction is more convenient and labor-saving.

Referring to FIG. 4, the installation base 2 comprises an installation bottom panel 21 horizontally arranged and the installation side panels 22 located at two sides and arranged inclined, and the planer knife 28 is on long strip, wherein a middle part of the planer knife 28 is paralleled to the installation bottom panels 21, and two ends of the planer knife 28 are respectively paralleled with two of the installation side panels 22, wherein the cutting edge of the planer knife 28 is arranged inclined downward, and a middle cutting edge of the planer knife 28 is lower than the installation bottom panels 21, and the cutting edges of two ends of the planer knife 28 are respectively lower than two of the installation side panels 22, and the discharging pipe 3 comprises inclined segments 33 located on two ends and the horizontal segment 32 located on middle part, wherein the horizontal segment 32 is paralleled to the middle part of the planer knife 28 and the inclined segments 33 is paralleled to two ends of the planer knife 28, and a rear edge of the planer knife 28 contacts with a lower edge of the feed inlet 31 to make the planer knife 28 and the discharging pipe 3 be able to adapted to a shape of the trench; whereby with a movement of the movable base 1, the dug soil is able to enter the feed inlet 31 along a side surface of the planer knife 28; the discharging mechanism comprises a discharging motor 25, and a discharging main shaft 35 is rotatably connected within the horizontal segment 32, wherein two of main helical blades 351 are spirally arranged on a peripheral surface of the discharging main shaft 35 along the length direction, wherein two of the main helical blades 351 extend into two ends of the discharging main shaft 35 respectively and spiral directions of two of the main helical blades 351 are contrary to each other, and discharging side shafts 36 are rotatably connected within the inclined segments 33, wherein a side helical blades 361 is spirally arranged on peripheral surfaces of the corresponding one of the discharging side shafts 36 along the length direction, and a spiral direction of the side helical blades 361 is the same as a spiral direction of the main helical blades 351 of an adjacent one, and the discharging motor 25, the discharging main shaft 35 and the discharging side shafts 36 are connected with each other, whereby the discharging motor 25 drives the discharging main shaft 35 to rotate, and then two of main discharging blades on the discharging main shaft 35 are able to push the soil in the discharging pipe 3 to two ends, and then the soil will be pushed and transferred by side discharging blades of the discharging side shafts 36 after the soil enters into the inclined segments 33; a transmission main shaft 23 is rotatably connected on the installation bottom panels 21 along a width direction, and a transmission side shafts 24 is rotatably connected on the installation side panels 22 along the width direction, and a driving bevel gears 231 is fixed on two ends of the transmission main shaft 23, and driven bevel gears 241 are fixed on inner ends of the transmission side shafts 24, wherein two of the driven bevel gears 241 are engaged with two of the driving bevel gears 231 respectively, and the transmission main shaft 23 is drive-connected to a middle of the discharging main shaft 35 through a pulley, and discharging segments 34 horizontally arranged are formed by an outward bending of two of the inclined segments 33, wherein an outer end of each of the discharging side shafts 36 passes through side walls of the discharging segments 34 and a stretch end of each of the discharging side shafts 36 is drive-connected to an outer end of the transmission side shafts 24 through the pulley, and the driving motors 64 is fixed on the installation bottom panels 21, wherein the driving gears 63 is drive-connected to the transmission main shaft 23 through the pulley, that is, the discharging motor 25 drives the transmission main shaft 23 to rotate, and then the transmission main shaft 23 directly drive the discharging main shaft 35 to rotate, at the same time, two ends of the transmission main shaft 23 drive the transmission side shafts 24 to rotate through a cooperation of the driving bevel gears 231 and the driven bevel gears 241, and then the transmission side shafts 24 drives a corresponding one of the discharging side shafts 36 to rotate.

Referring to FIGS. 5 and 6, the striking mechanism comprises several of transmission plates 7 respectively located on a lower side of the installation bottom panels 21 and an outer side of the installation side panels 22, wherein several of the transmission plates 7 are lined up forward and backward, and the transmission plates 7 on the lower side of the installation bottom panels 21 are arranged along a width direction of the installation bottom panels 21 and the transmission plates 7 on the outer sides of the installation side panels 22 are arranged along a width direction of the installation side panels 22, wherein several through holes are defined in two sides of the installation bottom panels 21 and the installation side panels 22 along a length direction, and connection plates 71 are vertically arranged on two ends of the transmission plates 7 and the connection plates 71 are slidably pass through the corresponding through holes, wherein the guide sleeves 72 are fixed on ends of the connection plates 71, and several of guide columns 26 are vertically fixed on two edges of the installation bottom panels 21 and the installation side panels 22, wherein several of the guide sleeves 72 are slidably sleeved on several of the guide columns 26, and several of striking columns 74 are arranged on outer side surfaces of the transmission plates 7 along the length direction, wherein the striking discs 75 are arranged on end surfaces of the striking columns 74, wherein outer edges of the striking discs 75 are disposed with arc-shaped chamfer, and a transmission member for driving several of the guide sleeves 72 to move along the guide columns 26 to and fro is arranged on the installation base 2, wherein the transmission member comprises several of transmission columns 27 rotatably connected on edges of two sides of the installation side panels 22 and the installation bottom panels 21, and the transmission columns 27 on the installation bottom panels 21 are arranged along a width direction of the installation bottom panels 21, and the transmission columns 27 on the installation side panels 22 are arranged along a width direction of the installation side panels 22, and the transmission cams 271 are fixed on ends of the transmission columns 27, and the striking springs 261 are sleeved on the guide columns 26, wherein upper ends of the striking springs 261 act on top ends of the guide columns 26 and lower ends of the striking springs 261 act on upper ends of the guide sleeves 72, and the pushing plates 73 are fixed on the guide sleeves 72, wherein a cam surface of the transmission cam transmission cams 271 are abutted against lower side surfaces of the pushing plates 73, and projection directions of several of the transmission cams 271 on same row along the forward and backward directions are different from each other, and adjacent two of the transmission columns 27 on same row along the forward and backward directions are drive-connected with each other through the pulley, and one of the transmission columns 27 on same row along the forward and backward direction on the installation bottom panels 21 are drive-connected with the transmission main shaft 23 through the pulley, and one of the transmission columns 27 on same row along forward and backward directions on the installation side panels 22 are drive-connected with the transmission side shafts 24 through the pulley.

Referring to FIG. 7-10, an installation plate 5 is fixed on rear side surface of the material tank 4, wherein the installation plate 5 is on isosceles trapezoid, and transmission wheels 52 are rotatably connected on four corners of the rear side surface of the installation plate 5, wherein the pushing belt 8 on circle-shaped is sleeved on four of the transmission wheels 52, regulating boards 53 on long strips are slidably and vertically connected on side surfaces of the installation plate 5, wherein the regulating boards 53 are locked and fixed on the installation plate 5 through a locking bolt, wherein tension pulleys 531 are rotatably connected on two of the regulating boards 53, and a transmission gear 54 is rotatably connected on the installation plate 5, wherein the transmission gear 54 is located between two of the tension pulleys 531, and notches 81 are arranged on inner side surface of the pushing belt 8, wherein two of the tension pulleys 531 press downward on outer side surface of the pushing belt 8, and notches 81 of the pushing belt 8 are engaged with the transmission gear 54 under an action of the tension pulleys 531, and a transmission motor 55 is fixed on the installation plate 5, wherein the transmission motor 55 is drive-connected with the transmission gear 54 through the pulley, and several projected one of pushing peaks 82 are distributed on outer side surface of the pushing belt 8 along the length direction, wherein a length direction of the pushing peaks 82 are arranged along a width direction of the pushing belt 8, and the cross section of the pushing peaks 82 are on arc-shaped, and guide ramp 83 are arranged on edges, closing to the installation plate 5, of the outer side surface of the pushing belt 8, wherein the discharging port 41 is opposite to the guide ramp 83, and a counterweight 9 is arranged in the material tank 4, wherein the counterweight 9 is on rectangle and an end surface of an edge of the counterweight 9 stick to inner side surface of the material tank 4, wherein feed port 91 is defined on a middle part of the counterweight 9, wherein a cover 92 is sealed and fixed on the feed port 91, and two of discharging port 41 on long strip are vertically fixed on two side surfaces of the material tank 4, wherein damping grooves 44 are formed between the damping plates 42 and outer side surface of the material tank 4, wherein rubber layers 43 are fixed on inner side surfaces of the damping plates 42, and damping masses 94 are connected on edges of two sides of the counterweight 9 through the pull cords 93, and a guide wheel 45 is rotatably connected on the edge of the upper end of the material tank 4, and the pull cords 93 pass around the guide wheel 45, and two of the damping masses 94 connected within the damping grooves 44 on two sides of the material tank 4 respectively, and two ends of the damping plates 42 are penetrated through and disposed with an adjusting bolt, wherein ends of the adjusting bolt are threaded on side surface of the material tank 4; the movable base 1 comprises movale bottom panel 11 and movable side panel 12 located on two sides and inclined arranged, and the installation bottom panels 21 is higher than the movale bottom panel 11, and the installation side panels 22 is higher than the movable side panel 12, and the cutting edge of the scraper 51 is arranged inclined and downward, wherein a middle part of the scraper 51 is paralleled to edge of rear end of the movale bottom panel 11, wherein two ends of the scraper 51 are paralleled to edges of rear ends of two of the movable side panel 12 respectively, and driving bases 6 are slidably connected on the guide rails 10, wherein several of connection columns 61 are vertically fixed on the driving bases 6, and several of attachment sleeves 121 are fixed on the edges of two sides of the movable base 1, wherein several of the attachment sleeves 121 are slidably sleeved o several of the guide columns 26 respectively, and length of the guide columns 26 are larger than that of the attachment sleeves 121, and guide grooves 101 are arranged on outer side surfaces of the guide rails 10, wherein driving racks 102 are fixed on groove walls of the guide grooves 101 along a length direction, and cross sections of driving bases 6 are on U-shaped and the driving bases 6 are buckled on the guide rails 10, wherein two of rollers 62 and one of rollers 62 are rotatably connected on inner side surfaces of the driving bases 6, wherein the driving gears 63 are located between two of the rollers 62, and two of the rollers 62 are abutted against lower groove walls of the guide grooves 101, and the driving gears 63 are engaged with the driving racks 102, and driving motors 64 are further fixed on the driving bases 6, wherein the driving motors 64 are connected with the driving gears 63. 

1. A trench construction device for construction sites, comprises a movable base and two of guide rails fixed on ground of two sides of a trench, wherein the movable base is an U-shaped plate and two edges of the movable base are respectively and slidably connected on the guide rails, and the movable base has an upward flaring shaped opening, wherein an installation base on U-shaped plate is fixed on a front end of the movable base, wherein a planer knife with a cutting edge facing forwardly is fixed on a front edge of the installation base along a direction of extending across a width of the moveable base, wherein a discharging pipe is fixedly arranged on a rear side of the planer knife along the direction of extending across a width of the moveable base, and two ends of the discharging pipe are extending into outer sides of the guide rails, wherein a feed inlet located behind the planer knife is defined on front sides of the discharging pipe along the the direction of extending across a width of the moveable base, wherein a discharging device which can discharge soil slag to two sides of the discharging pipe is arranged in the discharging pipe, wherein a striking mechanism which can strike on an underside and two sides of the trench is further arranged on the installation base; a material tank for storing concrete fixedly arranged on the movable base, wherein an discharging port arranged along a direction that the rear edge of the movable base extends across a width of the moveable base is defined on a bottom of the material tank; a scraper with a rear-faced cutting edge fixed on a rear edge of the movable base along the length direction, wherein a pushing belt for bulldozing the concrete discharged from the discharging port is rotatably arranged between the discharging port and the scraper on the movable base.
 2. The trench construction device for construction sites defined in claim 1, wherein driving bases are slidably connected on the guide rails, wherein several of connection columns are vertically fixed on the driving bases, and several of attachment sleeves are fixed on the edges of two sides of the movable base, wherein several of the attachment sleeves are slidably sleeved o several of the guide columns respectively, and length of the guide columns are larger than that of the attachment sleeves.
 3. The trench construction device for construction sites defined in claim 2, wherein the installation base comprises an installation bottom panel horizontally arranged and the installation side panels located at two sides and arranged inclined, and the planer knife is on long strip, wherein a middle part of the planer knife is paralleled to the installation bottom panels, and two ends of the planer knife are respectively paralleled with two of the installation side panels, wherein the cutting edge of the planer knife is arranged inclined downward, and a middle cutting edge of the planer knife is lower than the installation bottom panels, and the cutting edges of two ends of the planer knife are respectively lower than two of the installation side panels, and the discharging pipe comprises inclined segments located on two ends and the horizontal segment located on middle part, wherein the horizontal segment is paralleled to the middle part of the planer knife and the inclined segments is paralleled to two ends of the planer knife, and a rear edge of the planer knife contacts with a lower edge of the feed inlet.
 4. The trench construction device for construction sites defined in claim 3, wherein the discharging mechanism comprises a discharging motor; a discharging main shaft rotatably connected within the horizontal segment, wherein two of main helical blades are spirally arranged on a peripheral surface of the discharging main shaft along the length direction, wherein two of the main helical blades extend into two ends of the discharging main shaft respectively and spiral directions of two of the main helical blades are contrary to each other, and discharging side shafts are rotatably connected within the inclined segments, wherein a side helical blades is spirally arranged on peripheral surfaces of the corresponding one of the discharging side shafts along the length direction, and a spiral direction of the side helical blades is the same as a spiral direction of the main helical blades of an adjacent one, and the discharging motor, the discharging main shaft and the discharging side shafts are connected with each other.
 5. The trench construction device for construction sites defined in claim 4, wherein a transmission main shaft is rotatably connected on the installation bottom panels along a width direction; a transmission side shafts rotatably connected on the installation side panels along the width direction; a driving bevel gears fixed on two ends of the transmission main shaft; driven bevel gears fixed on inner ends of the transmission side shafts, wherein two of the driven bevel gears are engaged with two of the driving bevel gears respectively; the transmission main shaft drive-connected to a middle of the discharging main shaft through a pulley; discharging segments which are horizontally arranged formed by an outward bending of two of the inclined segments, wherein an outer end of each of the discharging side shafts passes through a side wall of the discharging segments and a stretch end of each of the discharging side shafts is drive-connected to an outer end of the transmission side shafts through the pulley, and the driving motors is fixed on the installation bottom panels, wherein the driving gears is drive-connected to the transmission main shaft through the pulley.
 6. The trench construction device for construction sites defined in claim 5, wherein the striking mechanism comprises several of transmission plates respectively located on a lower side of the installation bottom panels and an outer side of the installation side panels, wherein several of the transmission plates are lined up forward and backward, and the transmission plates on the lower side of the installation bottom panels are arranged along a width direction of the installation bottom panels and the transmission plates on the outer sides of the installation side panels are arranged along a width direction of the installation side panels, wherein several through holes are defined in two sides of the installation bottom panels and the installation side panels along a length direction, and connection plates are vertically arranged on two ends of the transmission plates and the connection plates are slidably pass through the corresponding through holes, wherein the guide sleeves are fixed on ends of the connection plates, and several of guide columns are vertically fixed on two edges of the installation bottom panels and the installation side panels, wherein several of the guide sleeves are slidably sleeved on several of the guide columns, and several of striking columns are arranged on outer side surfaces of the transmission plates along the length direction, wherein the striking discs are arranged on end surfaces of the striking columns, wherein outer edges of the striking discs are disposed with arc-shaped chamfer, and a transmission member for driving several of the guide sleeves to move along the guide columns to and fro is arranged on the installation base.
 7. The trench construction device for construction sites defined in claim 6, wherein the transmission member comprises several of transmission columns rotatably connected on edges of two sides of the installation side panels and the installation bottom panels; the transmission columns on the installation bottom panels arranged along a width direction of the installation bottom panels; the transmission columns on the installation side panels arranged along a width direction of the installation side panels; the transmission cams fixed on ends of the transmission columns; the striking springs sleeved on the guide columns, wherein upper ends of the striking springs act on top ends of the guide columns and lower ends of the striking springs act on upper ends of the guide sleeves, and the pushing plates are fixed on the guide sleeves, wherein a cam surface of the transmission cam transmission cams are abutted against lower side surfaces of the pushing plates, and projection directions of several of the transmission cams on same row along the forward and backward directions are different from each other, and adjacent two of the transmission columns on same row along the forward and backward directions are drive-connected with each other through the pulley, and one of the transmission columns on same row along the forward and backward direction on the installation bottom panels are drive-connected with the transmission main shaft through the pulley, and one of the transmission columns on same row along forward and backward directions on the installation side panels are drive-connected with the transmission side shafts through the pulley.
 8. The trench construction device for construction sites defined in any one of claim 7, wherein an installation plate is fixed on rear side surface of the material tank, wherein the installation plate is on isosceles trapezoid, and transmission wheels are rotatably connected on four corners of the rear side surface of the installation plate, wherein the pushing belt on circle-shaped is sleeved on four of the transmission wheels, regulating boards on long strips are slidably and vertically connected on side surfaces of the installation plate, wherein the regulating boards are locked and fixed on the installation plate through a locking bolt, wherein tension pulleys are rotatably connected on two of the regulating boards; a transmission gear rotatably connected on the installation plate, wherein the transmission gear is located between two of the tension pulleys; notches arranged on inner side surface of the pushing belt, wherein two of the tension pulleys press downward on outer side surface of the pushing belt, and notches of the pushing belt are engaged with the transmission gear under an action of the tension pulleys; a transmission motor fixed on the installation plate, wherein the transmission motor is drive-connected with the transmission gear through the pulley, and several projected one of pushing peaks are distributed on outer side surface of the pushing belt along the length direction, wherein a length direction of the pushing peaks are arranged along a width direction of the pushing belt, and the cross section of the pushing peaks are on arc-shaped, and guide ramp are arranged on edges, closing to the installation plate, of the outer side surface of the pushing belt, wherein the discharging port is opposite to the guide ramp, and a counterweight is arranged in the material tank.
 9. The trench construction device for construction sites defined in claim 8, wherein the counterweight is on rectangle and an end surface of an edge of the counterweight stick to inner side surface of the material tank, wherein feed port is defined on a middle part of the counterweight, wherein a cover is sealed and fixed on the feed port, and two of discharging port on long strip are vertically fixed on two side surfaces of the material tank, wherein damping grooves are formed between the damping plates and outer side surface of the material tank, wherein rubber layers are fixed on inner side surfaces of the damping plates, and damping masses connected on edges of two sides of the counterweight through the pull cords, and a guide wheel is rotatably connected on the edge of the upper end of the material tank, and the pull cords pass around the guide wheel, and two of the damping masses connected within the damping grooves on two sides of the material tank respectively, and two ends of the damping plates are penetrated through and disposed with an adjusting bolt, wherein ends of the adjusting bolt are threaded on side surface of the material tank.
 10. The trench construction device for construction sites defined in any one of claim 7, wherein the movable base comprises movable bottom panel and movable side panel located on two sides and inclined arranged, and the installation bottom panels is higher than the movable bottom panel, and the installation side panels is higher than the movable side panel, and the cutting edge of the scraper is arranged inclined and downward, wherein a middle part of the scraper is paralleled to edge of rear end of the movable bottom panel, wherein two ends of the scraper are paralleled to edges of rear ends of two of the movable side panel respectively; guide grooves arranged on outer side surfaces of the guide rails, wherein driving racks are fixed on groove walls of the guide grooves along a length direction, and cross sections of driving bases are on U-shaped and the driving bases are buckled on the guide rails, wherein two of rollers and one of rollers are rotatably connected on inner side surfaces of the driving bases, wherein the driving gears are located between two of the rollers, and two of the rollers are abutted against lower groove walls of the guide grooves, and the driving gears are engaged with the driving racks, and driving motors are further fixed on the driving bases, wherein the driving motors are connected with the driving gears. 